JP2002201541A - Crimped polyester multifilament - Google Patents
Crimped polyester multifilamentInfo
- Publication number
- JP2002201541A JP2002201541A JP2000394402A JP2000394402A JP2002201541A JP 2002201541 A JP2002201541 A JP 2002201541A JP 2000394402 A JP2000394402 A JP 2000394402A JP 2000394402 A JP2000394402 A JP 2000394402A JP 2002201541 A JP2002201541 A JP 2002201541A
- Authority
- JP
- Japan
- Prior art keywords
- crimped polyester
- polyester multifilament
- section
- cross
- dents
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Woven Fabrics (AREA)
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は捲縮ポリエステルマ
ルチフィラメントに関するものであり、さらに詳しく
は、親水加工を施した際、吸水性とその洗濯耐久性並び
に速乾性に優れ、且つ良好なドライ感を呈する布帛を得
ることが可能な捲縮ポリエステルマルチフィラメントに
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crimped polyester multifilament, and more particularly to a water-absorbent, highly durable, fast drying and good dry feeling when subjected to a hydrophilic treatment. The present invention relates to a crimped polyester multifilament capable of obtaining a fabric to be exhibited.
【０００２】[0002]
【従来の技術】従来より、サッカーシャツ、ランニング
シャツあるいはゴルフシャツなどのスポーツ衣料用途に
おいては、汗をかいても快適な状態が維持されるよう
に、吸汗速乾性を有する布帛が使用されてきた。このよ
うな吸汗速乾性布帛には、例えば特公昭６２−４５３４
０号公報、特許第２６６７１５２号公報などに開示され
ているように、繊維の断面に凹部を有するポリエステル
繊維が用いられていることが多い。2. Description of the Related Art Conventionally, in sports clothing applications such as soccer shirts, running shirts and golf shirts, fabrics having a quick-drying property have been used so as to maintain a comfortable state even when sweating. . Such sweat-absorbing quick-drying fabrics include, for example, JP-B-62-4534.
As disclosed in Japanese Patent No. 0, Patent No. 2,667,152 and the like, polyester fibers having concave portions in the cross section of the fibers are often used.
【０００３】このような、断面に凹部を有するポリエス
テル繊維の代表例の一つがＷ字状断面のポリエステル繊
維であり、これらの繊維はその単繊維間に毛細管が有効
に形成されるので吸水特性や導水特性に優れているた
め、専ら仮撚加工等の加工を施されて使用されている
（例えば、特開昭６３−２１９６２８号公報、特開昭６
２−６９３３号公報、特開昭６２−２１８３７号公報、
特開昭６２−２３８８４２号公報、或いは特開昭６２−
２７６０６０号公報など）。[0003] One of the typical examples of such polyester fibers having a concave portion in cross section is a polyester fiber having a W-shaped cross section, and since these fibers have a capillary formed effectively between the single fibers, the water absorption properties and the like are high. Because of its excellent water-guiding properties, it is used after being subjected to processing such as false twisting (for example, JP-A-63-219628, JP-A-6-219628).
2-6933, JP-A-62-21837,
JP-A-62-238842 or JP-A-62-288842.
276060).
【０００４】しかしながら、上記のＷ字状断面のポリエ
ステル繊維に仮撚等の物理的衝撃を与えた場合、構成単
繊維がその長手方向に割れ易く、せっかく形成された毛
細管が破壊されて吸水特性や導水特性が低下するという
問題があった。However, when a physical impact such as false twist is applied to the above-mentioned polyester fiber having a W-shaped cross section, the constituent monofilament is liable to break in its longitudinal direction, and the formed capillary tube is broken, and the water absorption property and the like are degraded. There was a problem that the water transfer characteristics were reduced.
【０００５】一方、特開平１１−２６９７１８号公報に
は、高度に異形化された断面を有する吸水性のポリエス
テル仮撚加工糸が開示されているが、該加工糸を構成す
る繊維の断面に存在する凹部はその開口角が１００〜１
５０°と大きいため、水分の保持能力が低く、吸水性と
その洗濯耐久性に劣るという問題があった。[0005] On the other hand, Japanese Patent Application Laid-Open No. 11-269718 discloses a water-absorbing polyester false twisted yarn having a highly deformed cross section, but is present in the cross section of the fiber constituting the processed yarn. The concave portion has an opening angle of 100 to 1
Since it is as large as 50 °, there was a problem that the ability to retain moisture was low, and the water absorption and the washing durability were poor.
【０００６】[0006]
【発明が解決しようとする課題】本発明の目的は上記従
来技術の有する問題点を解消し、親水加工を施した際、
ただ単に吸水性を高めるのみならず、その洗濯耐久性並
びに速乾性に優れ、且つ良好なドライ感を呈する布帛を
得ることが可能な捲縮ポリエステルマルチフィラメント
を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art,
It is an object of the present invention to provide a crimped polyester multifilament capable of obtaining a fabric which not only merely enhances water absorption but also has excellent washing durability and quick-drying property and exhibits a good dry feeling.
【０００７】[0007]
【課題を解決するための手段】本発明者は上記目的を達
成するために鋭意検討した結果、捲縮ポリエステルフィ
ラメントの断面に存在する凹部の開口深度に特定のバラ
ツキを付与するとき、所望の捲縮マルチフィラメントが
得られることを究明し、本発明に到達した。Means for Solving the Problems As a result of intensive studies to achieve the above object, the present inventor has found that when a specific variation is imparted to the opening depth of the concave portion existing in the cross section of the crimped polyester filament, a desired winding is obtained. The inventors of the present invention have sought to obtain a reduced multifilament and have reached the present invention.
【０００８】かくして本発明によれば、その断面に、３
個以上の凹部が存在する捲縮ポリエステルフィラメント
から構成されるマルチフィラメントであって、下記方法
により測定した全凹部の開口深度Ｓの標準偏差が２０〜
５０であり、且つ開口深度Ｓが３０％以上となる凹部が
全凹部に対して５０％以上存在していることを特徴とす
る捲縮ポリエステルマルチフィラメントが提供される。Thus, according to the present invention, 3
A multifilament composed of crimped polyester filaments having at least two concave portions, wherein the standard deviation of the opening depth S of all concave portions measured by the following method is 20 to
The present invention provides a crimped polyester multifilament, wherein the number of concave portions is 50 and the concave portion having an opening depth S of 30% or more exists in all concave portions by 50% or more.
【０００９】（開口深度Ｓの測定）ポリエステルマルチ
フィラメントを構成する各フィラメントにつき、その任
意の断面における凹部の開口部の長さＬ、凹部の最大深
さＨより下記式を用いて算出する。(Measurement of Opening Depth S) For each filament constituting the polyester multifilament, it is calculated from the length L of the opening of the concave portion and the maximum depth H of the concave portion in an arbitrary cross section using the following equation.
【００１０】[0010]
【数２】 (Equation 2)
【００１１】[0011]
【発明の実施の形態】本発明の捲縮ポリエステルマルチ
フィラメントは、捲縮を有するポリエチレンテレフタレ
ートフィラメントから主として構成される。ここで、捲
縮とは上記フィラメントに、仮撚加工等、従来公知の捲
縮付与手段を適用して得たものを言う。DESCRIPTION OF THE PREFERRED EMBODIMENTS The crimped polyester multifilament of the present invention is mainly composed of crimped polyethylene terephthalate filaments. Here, the crimp refers to a filament obtained by applying a conventionally known crimping means such as false twisting to the filament.
【００１２】また、上記の捲縮ポリエステルマルチフィ
ラメントを得るための原糸は、中間配向糸（ＰＯＹ）で
も完全配向糸（ＦＯＹ）でも良い。The raw yarn for obtaining the above-mentioned crimped polyester multifilament may be a middle oriented yarn (POY) or a fully oriented yarn (FOY).
【００１３】本発明においては、上記捲縮ポリエステル
フィラメントの断面には３個以上の凹部が存在すること
が必要である。該凹部の数が２個未満の場合は、単繊維
間に毛細管が有効に形成されず、親水加工を施した際、
吸水特性や導水特性を高めることができない。In the present invention, it is necessary that the cross section of the crimped polyester filament has three or more concave portions. When the number of the concave portions is less than 2, when the capillary is not effectively formed between the single fibers, and subjected to hydrophilic processing,
Water absorption characteristics and water conduction characteristics cannot be improved.
【００１４】また、本発明においては、上記捲縮ポリエ
ステルフィラメントの任意の断面において、凹部の開口
部の長さをＬ、凹部の最大深さをＨとするとき、下記式
により算出した凹部の開口深度Ｓが３０％以上となるも
のが全凹部に対して５０％以上存在していることが必要
である。In the present invention, when the length of the opening of the recess is L and the maximum depth of the recess is H in an arbitrary cross section of the crimped polyester filament, the opening of the recess is calculated by the following equation. It is necessary that the depth S of 30% or more exists in all the recesses by 50% or more.
【００１５】[0015]
【数３】 (Equation 3)
【００１６】該比率が５０％未満の場合は、親水加工を
施した際、吸水特性や導水特性を高めることができない
上、その洗濯耐久性並びに速乾性が低下する。一方、該
比率があまり高すぎると、仮撚加工等で、形成された毛
細管が破壊されて吸水特性や導水特性が低下することが
あるので、高々７０％が好ましい。When the ratio is less than 50%, the water absorbing property and the water guiding property cannot be improved when the hydrophilic processing is performed, and the washing durability and quick drying property are reduced. On the other hand, if the ratio is too high, the formed capillaries may be broken by false twisting or the like, and the water absorption characteristics and water conduction characteristics may be reduced.
【００１７】さらに、本発明においては、全凹部の開口
深度Ｓの標準偏差が２０〜５０であることが必要であ
る。該標準偏差の値が２０未満の場合は、捲縮ポリエス
テルフィラメントの断面形状が均一となり、親水加工を
施した際、その洗濯耐久性が低下する上、良好なドライ
感を呈する布帛を得ることが困難になる。一方、該標準
偏差の値が５０を越える場合は、捲縮ポリエステルフィ
ラメントの断面形状の変化が大きくなり過ぎ、仮撚等の
物理的衝撃を与えた場合、構成単繊維がその長手方向に
割れ易くなり、糸切れや毛羽が発生し易くなるので、製
織編性が低下する。Further, in the present invention, the standard deviation of the opening depth S of all the concave portions needs to be 20 to 50. When the value of the standard deviation is less than 20, the cross-sectional shape of the crimped polyester filament becomes uniform, and when subjected to hydrophilic processing, the washing durability is reduced and a fabric exhibiting a good dry feeling can be obtained. It becomes difficult. On the other hand, when the value of the standard deviation exceeds 50, the cross-sectional shape of the crimped polyester filament changes too much, and when a physical impact such as false twist is applied, the constituent single fiber is easily broken in the longitudinal direction. As a result, yarn breakage and fluff are likely to occur, and the weaving and knitting properties decrease.
【００１８】本発明の捲縮ポリエステルマルチフィラメ
ントは、例えば、十字断面（この場合、凹部は４個存在
する）のポリエステルマルチフィラメント中間配向糸を
従来公知の延伸仮撚加工装置に供給し、延伸倍率や延伸
仮撚の温度或いは仮撚数を適宜調整しながら延伸仮撚加
工することにより得ることができる。For the crimped polyester multifilament of the present invention, for example, a polyester multifilament intermediate oriented yarn having a cross section (in this case, four concave portions are present) is supplied to a conventionally known drawing false twisting apparatus, and a draw ratio is set. It can be obtained by performing a stretch false twisting process while appropriately adjusting the temperature or the number of false twists.
【００１９】即ち、十字断面のポリエステルマルチフィ
ラメントを延伸仮撚した場合、断面に存在する凹部の一
部が仮撚により変形され、その開口深度Ｓが大きい部分
や小さい部分がフィラメント間或いはフィラメントの長
手方向にランダムに形成されるので、上述のような開口
深度Ｓのバラツキを有する捲縮ポリエステルマルチフィ
ラメントが製造可能となるのである。That is, when a polyester multifilament having a cross-section is stretched and false-twisted, a part of the concave portion existing in the cross-section is deformed by false-twisting, and a portion where the opening depth S is large or small is formed between the filaments or the length of the filament. Since it is formed randomly in the direction, a crimped polyester multifilament having the variation of the opening depth S as described above can be manufactured.
【００２０】上記の捲縮ポリエステルマルチフィラメン
トは、従来公知の方法により織編物等の布帛とすること
ができる。この際、布帛の組織や編織密度等には特に限
定はなく、従来公知のものが任意に採用できる。The above-mentioned crimped polyester multifilament can be made into a woven or knitted fabric by a conventionally known method. At this time, there are no particular limitations on the structure of the fabric, the knitting density, and the like, and conventionally known ones can be arbitrarily adopted.
【００２１】かくして得られた布帛は、例えば親水加工
を施した際、良好な吸水性を示すのみならず、その洗濯
耐久性並びに速乾性に優れ、且つ良好なドライ感を呈す
るので、特にスポーツ衣料用途に好適に使用できる。The fabric thus obtained, for example, when subjected to a hydrophilic treatment, exhibits not only good water absorbency, but also excellent washing durability and quick-drying properties, and exhibits a good dry feeling. Suitable for use.
【００２２】[0022]
【実施例】以下、実施例により本発明をさらに詳細に説
明する。尚、実施例中の物性は下記の方法により測定し
た。The present invention will be described in more detail with reference to the following examples. The physical properties in the examples were measured by the following methods.
【００２３】（１）Ｄ／Ｙ ディスク式仮撚装置における、仮撚ディスクの表面速度
Ｄと糸走行速度Ｙの比を仮撚数の指標とした。(1) The ratio of the surface speed D of the false twist disk to the yarn running speed Y in the D / Y disk type false twist device was used as an index of the number of false twists.
【００２４】（２）開口深度Ｓ ポリエステルマルチフィラメントを構成する各フィラメ
ントにつき、その任意の断面において、図１に示すよう
に、凹部の開口部の長さＬ、凹部の最大深さＨを測定
し、下記式を用いて算出する。(2) Opening Depth S For each filament constituting the polyester multifilament, the length L of the opening of the concave portion and the maximum depth H of the concave portion were measured at an arbitrary cross section as shown in FIG. , Using the following equation.
【００２５】[0025]
【数４】 (Equation 4)
【００２６】（３）ウィッキング 親水加工を施した布帛につき、ＪＩＳ Ｌ１９０７−
５．１．１（滴下法）に準じて測定を行った。Ｌ０は親
水加工を施した後のウィッキングの値（秒）、また、Ｌ
１０は、ＪＩＳ Ｌ０８４４−Ａ−２法により１０回洗
濯を行った後のウィッキングの値（秒）を表す。(3) Wicking JIS L1907-
The measurement was performed according to 5.1.1 (dropping method). L0 is the wicking value (seconds) after the hydrophilic processing, and L0
10 represents a wicking value (second) after washing 10 times according to the JIS L0844-A-2 method.
【００２７】（４）製織性 ウォータージェットルーム織機を用いて製織した際、経
糸の毛羽による停台回数が３回／時間以上の場合を不
良、３回／時間未満の場合を良好と判断した。(4) Weaving properties When weaving was carried out using a water jet loom, the case where the number of stops due to the warp fluff was 3 times / hour or more was judged to be poor, and the case where it was less than 3 times / hour was judged to be good.
【００２８】（５）布帛の風合 布帛のドライ感を熟練者５人により官能判定し、１級
（極めて不良）〜５級（極めて良好）の５段階で評価し
た。(5) Hand feeling of the fabric The dry feeling of the fabric was sensory-determined by five skilled persons and evaluated on a scale of 1st (extremely poor) to 5th (extremely good).
【００２９】［実施例１］ポリエチレンテレフタレート
ポリマーを常法により紡糸して得た、１３９ｄｔｅｘ／
２４フィラメントの十字断面ポリエステルマルチフィラ
メント（中間配向糸）を仮撚加工装置に供給し、表１に
示す条件で仮撚加工を施して、８３ｄｔｅｘ／２４フィ
ラメントの捲縮ポリエステルマルチフィラメントを得
た。Example 1 A polyethylene terephthalate polymer obtained by spinning according to a conventional method was 139 dtex /
A 24-filament cross-section polyester multifilament (intermediate-oriented yarn) was supplied to a false twisting device and subjected to false twisting under the conditions shown in Table 1 to obtain a crimped polyester multifilament of 83 dtex / 24 filaments.
【００３０】次に、該捲縮ポリエステルマルチフィラメ
ントを経糸及び緯糸に配し、常法により製織及び染色仕
上げ加工を行って、織物を得た。得られた捲縮ポリエス
テルマルチフィラメント及び織物の物性を表１に示す。Next, the crimped polyester multifilament was arranged on a warp and a weft and woven and dyed and finished by a conventional method to obtain a woven fabric. Table 1 shows the physical properties of the obtained crimped polyester multifilament and woven fabric.
【００３１】［実施例２］実施例１において、仮撚加工
条件を表１に示す如く変更した以外は実施例１と同様に
実施した。得られた捲縮ポリエステルマルチフィラメン
ト及び織物の物性を表１に示す。Example 2 Example 1 was carried out in the same manner as in Example 1, except that the false twisting conditions were changed as shown in Table 1. Table 1 shows the physical properties of the obtained crimped polyester multifilament and woven fabric.
【００３２】［比較例１〜４］実施例１において、仮撚
加工条件を表１に示す如く変更した以外は実施例１と同
様に実施した。得られた捲縮ポリエステルマルチフィラ
メント及び織物の物性を表１に示す。尚、比較例４にお
いては、製織時の経糸に毛羽が多発し、製織が不可能で
あった。[Comparative Examples 1 to 4] The procedure of Example 1 was repeated, except that the false twisting conditions were changed as shown in Table 1. Table 1 shows the physical properties of the obtained crimped polyester multifilament and woven fabric. In Comparative Example 4, the warp during weaving had many fluffs, and weaving was impossible.
【００３３】［比較例５］実施例１において、十字断面
ポリエステルマルチフィラメントに代えてＴ字断面ポリ
エステルマルチフィラメントを使用し、仮撚加工条件を
表１に示す如く変更した以外は実施例１と同様に実施し
た。得られた捲縮ポリエステルマルチフィラメント及び
織物の物性を表１に示す。[Comparative Example 5] Same as Example 1 except that a T-shaped cross-section polyester multifilament was used instead of the cross-section polyester multifilament and the false twisting conditions were changed as shown in Table 1. Was carried out. Table 1 shows the physical properties of the obtained crimped polyester multifilament and woven fabric.
【００３４】[0034]
【表１】 [Table 1]
【００３５】[0035]
【発明の効果】本発明によれば、親水加工を施した際、
吸水性とその洗濯耐久性並びに速乾性に優れ、且つ良好
なドライ感を呈する布帛を得ることが可能な捲縮ポリエ
ステルマルチフィラメントが得られるので、スポーツ衣
料用織編物に好適に使用できる。According to the present invention, when subjected to hydrophilic processing,
Since a crimped polyester multifilament which is excellent in water absorbency, its washing durability and quick-drying property and can provide a fabric exhibiting a good dry feeling is obtained, it can be suitably used for a woven or knitted fabric for sports clothing.
【図１】開口深度Ｓの測定方法を説明するための繊維の
断面図。FIG. 1 is a cross-sectional view of a fiber for explaining a method of measuring an opening depth S.
Ｌ 凹部の開口部の長さ Ｈ 凹部の最大深さ L Length of opening of recess H Maximum depth of recess
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｄ０３Ｄ 15/08 Ｄ０３Ｄ 15/08 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) D03D 15/08 D03D 15/08
Claims (1)
捲縮ポリエステルフィラメントから構成されるマルチフ
ィラメントであって、下記方法により測定した全凹部の
開口深度Ｓの標準偏差が２０〜５０であり、且つ開口深
度Ｓが３０％以上となる凹部が全凹部に対して５０％以
上存在していることを特徴とする捲縮ポリエステルマル
チフィラメント。 （開口深度Ｓの測定）ポリエステルマルチフィラメント
を構成する各フィラメントにつき、その任意の断面にお
ける凹部の開口部の長さＬ、凹部の最大深さＨより下記
式を用いて算出する。 【数１】 1. A multifilament composed of a crimped polyester filament having three or more recesses in its cross section, wherein the standard deviation of the opening depth S of all the recesses measured by the following method is 20 to 50. A crimped polyester multifilament characterized in that there is a concave portion having an opening depth S of 30% or more and 50% or more of all the concave portions. (Measurement of Opening Depth S) For each filament constituting the polyester multifilament, it is calculated from the length L of the opening of the concave portion and the maximum depth H of the concave portion in an arbitrary cross section using the following formula. (Equation 1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000394402A JP4183383B2 (en) | 2000-12-26 | 2000-12-26 | Crimped polyester multifilament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000394402A JP4183383B2 (en) | 2000-12-26 | 2000-12-26 | Crimped polyester multifilament |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002201541A true JP2002201541A (en) | 2002-07-19 |
| JP4183383B2 JP4183383B2 (en) | 2008-11-19 |
Family
ID=18860038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000394402A Expired - Lifetime JP4183383B2 (en) | 2000-12-26 | 2000-12-26 | Crimped polyester multifilament |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003105644A (en) * | 2001-07-17 | 2003-04-09 | Teijin Ltd | Polyester false-twisted textured yarn and method for producing the same |
| WO2004057074A1 (en) * | 2002-12-19 | 2004-07-08 | Teijin Limited | Polyester false-twisted yarn and method of manufacturing the yarn |
| JP2006274511A (en) * | 2005-03-30 | 2006-10-12 | Teijin Fibers Ltd | Cation-dyeable false twist yarn having specific cross section and method for producing the same |
| JP2007063691A (en) * | 2005-08-30 | 2007-03-15 | Teijin Fibers Ltd | Antistatic fabric and skin material for car seat |
| KR100885822B1 (en) | 2004-08-17 | 2009-02-26 | 데이진 가부시키가이샤 | Polyester false-twisted yarn and method of manufacturing the yarn |
| JP2014189915A (en) * | 2013-03-26 | 2014-10-06 | Toray Ind Inc | Polyester drawn false-twisted yarn |
-
2000
- 2000-12-26 JP JP2000394402A patent/JP4183383B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003105644A (en) * | 2001-07-17 | 2003-04-09 | Teijin Ltd | Polyester false-twisted textured yarn and method for producing the same |
| JP4700238B2 (en) * | 2001-07-17 | 2011-06-15 | 帝人ファイバー株式会社 | Polyester false twisted yarn and method for producing the same |
| WO2004057074A1 (en) * | 2002-12-19 | 2004-07-08 | Teijin Limited | Polyester false-twisted yarn and method of manufacturing the yarn |
| US7000375B2 (en) | 2002-12-19 | 2006-02-21 | Teijin Limited | Polyester false-twist yarn and method of manufacturing the yarn |
| KR100885822B1 (en) | 2004-08-17 | 2009-02-26 | 데이진 가부시키가이샤 | Polyester false-twisted yarn and method of manufacturing the yarn |
| JP2006274511A (en) * | 2005-03-30 | 2006-10-12 | Teijin Fibers Ltd | Cation-dyeable false twist yarn having specific cross section and method for producing the same |
| JP2007063691A (en) * | 2005-08-30 | 2007-03-15 | Teijin Fibers Ltd | Antistatic fabric and skin material for car seat |
| JP2014189915A (en) * | 2013-03-26 | 2014-10-06 | Toray Ind Inc | Polyester drawn false-twisted yarn |
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| Publication number | Publication date |
|---|---|
| JP4183383B2 (en) | 2008-11-19 |
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